Unexpected processing-induced particle/matrix interactions in magnetic composites based on thermoplastic matrix
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F25%3A63594702" target="_blank" >RIV/70883521:28110/25:63594702 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28610/25:63594702
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1359836825002914?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1359836825002914?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.compositesb.2025.112399" target="_blank" >10.1016/j.compositesb.2025.112399</a>
Alternative languages
Result language
angličtina
Original language name
Unexpected processing-induced particle/matrix interactions in magnetic composites based on thermoplastic matrix
Original language description
Understanding processing-induced changes in the polymer composites is of the utmost necessity as it affects the final properties and the reliability of the products. Despite their importance, related investigations are frequently overlooked, especially in the case of magnetorheological elastomers (MREs). In this study, the processing-induced changes were investigated within an isotropic MRE based on a thermoplastic elastomer (TPE) matrix loaded with carbonyl iron (CI) microparticles. Systematic thermomechanical tests in the molten state were used to mimic the processing conditions, revealing the time evolution of the particle/matrix interactions. The interactions manifested as an increase in the viscoelastic properties, which was attributed to the development of a secondary network composed of the confined polymer chains in the vicinity of the CI particles. The restricted mobility improved the reinforcing effect and structural integrity but diminished the field-induced stiffening of the composite, i.e., the magnetorheological effect. The existence of the particle/matrix covalent bonding was postulated and explained based on the coupling reaction between the thermomechanically-induced radicals formed in the polymer chain and the alkoxyl radicals on the surface of the CI particles. The new findings are highly relevant for the further development of reprocessable and recyclable TPE-based MREs, while the robust measuring protocol is deemed to be implementable for studying particle/matrix interactions in diverse composite systems.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)
Result continuities
Project
<a href="/en/project/GA23-07244S" target="_blank" >GA23-07244S: Anisotropic Magnetorheological Elastomers with Controlled Electrical Properties</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Composites Part B-Engineering
ISSN
1359-8368
e-ISSN
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Volume of the periodical
298
Issue of the periodical within the volume
Neuveden
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
nestránkováno
UT code for WoS article
001448233000001
EID of the result in the Scopus database
2-s2.0-86000665595